Power-shovel.



PATENTED AUG. 5, 1907.

2 SHEETSSHEET 1.

J. KIBSLER POWER SHOT BL.

AIPLIOATION FILED NOV 30,1906

No. 862,486. I PATENTED AUG. 6, 1907.

J. KIESLER.

POWER SHOVEL.

APPLICATION FILED NOV. 30, 1906.

2 SHEETS-SHEET 2.

'-.smlllllllllllllllllfllllll JosEPH KITESLER, or CHICAGO, iLLmois.

POWERJrlHOVEL.

fipecification of Letters Patent.

Patented Aug. 6, 1907.

Application filed November 30,1906. Serial No. 345,688.

To all whom it may concern: Be it known that I, JosEPH KIESLER, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented a new and useful Improvement inPower-Shovels, of which the.

following is a specification.

My invention relates to an improvement ingpower shovels, andparticularly'to the class used for unloading coal, grain and the likematerial, as from cars or boats, and for analogous uses.

The type of shovel to which my improvements relate comprises, generallystated, a pair of pivoted scoopshaped cooperating jaws provided withmeans for clos-i ing them on the material to be transferred, thereby tofill the shovel, and means for opening the jaws to discharge theircontents at the point to which the shovel v i ing ears 24 between whichis journaled a pulley 25,

is transferred.

My primary object is to provide a construction of power shovel of theclass referred to employing novel and peculiarly effective mechanism forcontrolling the opening and closing of the 'jaws, or scoop-sections. Tothis end I have devised theconstruction illustrated in the accompanyingdrawings, in which Figure 1 is a view in side elevation of a shovel ofthe class referred to, embodying my improvements, the shovel beingrepresented in open condition for filling; Fig. 2, a similar view of thesame, showing the shovel in closed condition; Fig. 3, a top plan view;and Fig. 4, a broken top plan view with a portion of the hanging gearremoved.

The shovel comprises two similar. scoop-shaped sections 5 and 6, fromthe two outer corners of each of which upwardly extend links 7, whichare pivotally connected at their lower ends to the scoop-sections and attheir upper ends are journaled to ears 8 provided on the outer ends of ahead or hanger-block 9. Extendingjbeyondthe upper edge of eachscoop-section from its inner corners are arms 10 which terminateincollars 11 at which they are pivoted independently of each other to theends of a shaft 12 positioned above the abutting edges of thescoop-sections, to provide a hinged connection between. the sections forpermitting them to be swung toward and away from each other and therebyopen and close the shovel. Journaled on the shaft 12 on opposite sidesof its longitudinal center, at their short arms, are bell-crank levers13 and 1.4. Near the outer ends of the long arms of the bellcranks 13and 14 are journaled pulleys 15 and 16, respectively.' The boll-cranksare oporativcly connected with the opposite scoop-sections by means oflinks or tension-members 17 and 18, respectively, each connected at oneend to an angle of the bell-cranks and at the opposite ends either by apivotal connection as shown, or by a rigid connection therewith to theopposite scoop-sections, at points below those at which the links 7 arepivoted, so that the links 17 and 18 cross each other near their upperends when the scoopsections are swung to the closed position illustratedin Fig. 2.

Extending upward from the block 9, near its longitudinal center, are twosets of ears 19, the sets being preferably arranged in differentvertical planes rela-' tive to each other, for the purpose hereinafterexplained. Each set of cars supports a bolt 20 to either one of whichthe dump or hold cable 21 may be secured. .Tournaled in lugs 22 carriedon the under side of the block 9 near its longitudinal center, is apulley 23. On the upper side of the block, near its longitudinal center,are provided upwardly extendthe block 9 being provided with an opening26, below the pulley 25, to permit of the travel through the block: andagainst the pulley, of the cable 27, for the purpose hereinafterdescribed. On the outer end of each arm 10 is a stop-lug 28, these lugsprojecting latorally from the arm, as shown in Fig. 3, to extend intothe path of movement of each other, and they are so positioned that theywill not engage until the scoop scctiojns swing to the desired openposition, whereuponfthey serve to limit further swinging of the sectionsTin that direction. Provided on the ends of the short arms of thehell-cranks are lugs 29, similar to the lugs 28, which are so positionedas to almost contact with each other when the sections are swung toclosed position. The objectin providing the lugs 29 is'to afford meanswhereby, should the scoop-sections, or link or lever-mechanism becomeimpaired during the operation of the shovel, the scoop closing andopening,

mechanism will be prevented from collapsing, with the result ofmaintaining the scoop in closed condition.

until itis desired to empty it.

The normal relative positions of the scoop-sections and lever mechanismdescribed are those shown in Fig .l, in which the weight of the levermechanism and pulleys 15 and 16 counterbalance that of thescoop-sections, thereby causing the latter to swing on their pivots tothe open position in which the scoop is ready for filling.

The operation of the shovel is as follows: The shovel is suspended to beraised and lowered by the cable 21L When there is no upward pull on thecable 27 the scoopsections assume the open position shown in Fig.

1, in' which the shovelniay be lowered into the pile' of material fromwhich a load is to be transferred. The, cable 27 is thereu'pon pulledi'pward, thereby causing the pulleys 15 and .16 to rise and turn thebellcranks on their pivots with the result of drawing the links ortension-members 17 and l8 with them and cod sequently causing thescoopsections to turn on the slackened, thereby causing the weight ofthe load to turn the levers and; scoop-sections to their open positionsfor dumping.

The pulleys 25, 15, 23 and 16, as shown in Fig. 3, are preferablyarranged to be angularly disposed with relation to each other, therebypermitting the portions of the lifting cable 27, which pass over thesepulleys, to be out of rubbing contact with each other and thus preventwear upon the cable during its traverse of the pulleys. 1 I

In using a powers hovel for purposesof transferring material from a boator car, especially, it is desirable that the shovel be loweredintodifferent positions therein to effect as nearly a thorough cleaningup thereof as possible, as, for example, in unloading car to remove thematerial from its corners it is necessary that the shovel be loweredinto it at a right-angle to its former lowered position. lion referredto, as far as I am aware, has heretofore been effected by a workman who,as the shovel is being lowered into the material, grasps theshovelshovel, by reason of the change in the center of gravity to assumedifferent positions, depending upon the v point of attachment at whichthe cable is secured.

What i claim as new, and desire to secure by Letters Patent is- 4 1. inn power-shovel, the combination with a pu-lr of cooperatingscoop-sections pivoted adjacent 10 their lnnor meeting edges on u shaftand plvotully suspended near fheirouler edges on a support :ibove suldshaft. of means for controlling the opening and closing of sold shovel.comprlslng .l pnlioi levers pivoted on suld shaft to extend on opposlresides thereof, llnks pivolully connecting sold lovers with the oppositescoop-secrlons. and means for upwardly lurulug sold leve -s on tlielrpivotsv for rho purpose set forth.

L. in u power-shovel. the combinullon with :l pull of cooperutlngscoop-sections 'plvoled logollior :ldJuccnt to llielr lnner meetingedge}; on sllul'l, :uul pii'olully suw pended near their outer edgesfrom :1 head, of inc-ms l'or controlling: llio opening and elm-dug otsnld shovel, cour prisim, :1 pair of bell cruuk levers plvolcd on soldvslml't to xtend on opposile sides thereof. links plvolully connectlngllll angles-of :lld bell'cru'nks with Mir-opposite scoop sm'lionsyumlmeans for upwardly lurn lng suid bell-cranks. You llu purpose sci forth.v

ln power-shovel, the comblnollon wllli :1 pair of colin.SQUupHLl'iluil-S pllulibll iHKl'ill r'lllljfllllll 'l'o lhelr inn-clingedges on i shall und plvotully suspended journuled In the outer end 0:each said bolls-rank. lluka The change of post.

llio l'mnuer block. lovers pivoted-near their lnncr ends on season neurtlielr outer edges from uhend. of means for, controlling the openlng andcloslng of sold slim-elk *oniprlslng: :1 pair of bell-crook leverspivoted lo suld shaft to extend on opposlle sides thereof. a pulleyjournnled near the outer end 01 ouch snld bell-crank. links plvotglllyconnecllm: the angles ol' ssld bell-cranks with the oppositesump-sections. and means for rulslng sold pulleys. for the purpose set.75

forth.

4. In a powensliovel. the comblnntlon with u pnlr of cooporntlngscoop-sections pivoted together adjacent to lhelr inner mcetlng edges onu shaft and pivotuily suspended near their outer edges from :1 hand. ofmeans for controlling the opening and closlng nf sold shovel. comprlslngn pair of levers pivoted to suid shaft to extend on opposite sidesthereof, links plvotully connecting said levers with the 0pposltescoop-sections. means for upwardly turning snld lovers on tlielr pivots.:ind'coilperutlng stops curried by said scoopsecllons for limiting thedegree'ol scpwuliou of the scoop-sections. r

In a power-shovel, the colnblnutlon of n pulr of to operatingscoop-sections, :1 (draft on which said sections are plvoted adjacent totheir inner meeting edges, :1 hunger block carrying: a shaft, linkspivoted on mild lust-mulled shmt.und YOillP outer corners of soldscoop-: ccllons. hell crank levers fulcrumed at their short urniu onsaid firstnarnod shaft in extend on opposite sides thin-col. pulleyplvolully connectlng the angles of sold bell-cranks \yltli the oppositeseoop-sectlousnt a point below the connecllon 0! mild first-named linkswith said sections. :1 pulley jourmried on the under side of saidhuugenblockJa pulley on the upper slde of said block; and un oporutlngcable hearing ngnlnsl suld lust-named pulley'.;e;tendlng downward andaround one of the pulleys on the bell-cranks. then over the other ofsaid pulleys'on lhc hunger-block. and then over the pulley on the othermill-crank;the-suitor the cable :uljncenl to snld lust referred topulley belng sv curvd to sold block, lor the purpose set forth.

ll. In it powi-nsliovel. (he conililnutlon of u pair-oi sliowlsecllons,a pivot connecllngsmd sections. it pnlr of pivotnlly supported leversequlpped'wltlrshouldms adapted to llmll' the rotation of the lovers inthe closing direction. links connecting said levers with theshovel-sections. a hungei lilock. links connecting the hanger-block withthe outer corners of the shovel-sections, rind 11 cable connected withthehunger-block and levers.

7. lo a poinrr slrovel. the comlllnullon of a pair of shovelsectlons, aslnifl on which sold sections are pivoted; a hunger-block] n dumpcubleconnected therewith, links conuectlm. the outer corners ol the HllOVllRBQilOll'cl Wlill Hlllll :lhutl, u lll'tlng-cuble cugnol'h-(l u-lllivsulll huu zer- 1'20 block and will! the outer oml-porllons of saidlevers. and llnks connected with intermediate porllons ol suld lovorsand with said shovclscclions between the lllilllll edges of thesliovtl-sw-l'lons und the poluls ol counocllon will) said first-namedlinks. I

H. In u prover-shovel, llu: comhiimllou ofn hood. it hold and dumpculllo currylng illfl illlllll. relullvoly ulovuhle shovel-sectionsplvolcd lop other, menus lor'opvnlnu und \loslm; sold sections. ulnlmoans gm sold heiul'foruilng a plurullly ol' polniu nl' ulluclnnonl forsaid cubic. ii} any one of which points snlrl (:lllll may be ulluclwd,for the purposv eel l'orlli. I

5!. in u power-elmlvchllncolublnullon of a pull" or shovelsucllous. nplvol couuovllng Huhi'sccllons. u heud from \\'lll(l. xuld sections nrcsuspondcll, n pulley on sold lll'lld. lcvcrlll-"llllll'llrllll i'ul'rulrllnu suld sm-llous upon lholr plvols. pulleys curried by soldlevcr-mechanism. llllll u cuhle ougngluu mild pulleys for opornlim; thelover-unrelinulsul. llnpulleys on lhe loror-uwrhunlsm uud heud helm: :lurulurll' disposed \rllh rr-lullon lo each other. for lhvpurposisotforlh. I

ll). 'llic comlrluullon ol' u pull' of slioveI-secllons. u plvolcnnm'l'lln); suld sccllons. u llilllllt'ldllul'k locu lcll uliovc soldsections mid linked to lho oulcr portions tin-roof. u pull of loverssupporlod on sold plvol. lllllnt: culilu comm-loll \vltli ,llie leversuml hunger-block. n (lump-cable runner-led ivllli the lznugcrdilock, nudlunslolrmembers connecllug [lulevers to the shovel-sectlons and adapted,when the levers are turned. tn pull the lower portions of the shovelserlions together. I 7

1-1. The cumhinnfiumol' a pair of shovel-sections. a shaft (:11 \vh'u-hsaid sections are pivoted, :1 hunger-block ahove said shaft.thrust-links connecting the hanger-block with the ouler purtiuns of theshoveLscn-tions, levers pivoted on said shaft, tension-members locatedin planes hecnth the shaft and connecting said levers with intermedlnfeportions of the shovebsectlons, whereby a 0108- 1D with the levers and\v'nh the hang In the presence uf- J. H. LANDRS, C W. \VASHBURXE.

er-hlock.

JOSEPH v Kl ESLE R.

